The package statmorph implements functionality of calculating non-parametric morphological diagnostics of galaxy images (e.g., Gini-M_20 and CAS statistics), as well as fitting 2D Sérsic profiles.

This package consists of Python replacements for functions that are part of the IDL built-in library or part of astronomical IDL libraries. The emphasis is on reproducing results of the astronomical library functions. Only the bare minimum of IDL built-in functions are implemented to support this.

This package provides a CIANNA - a general-purpose deep learning framework primarily developed and used for astronomical data analysis.

pixell is a library for loading, manipulating and analyzing maps stored in rectangular pixelization. It is mainly intended for use with maps of the sky (e.g. CMB intensity and polarization maps, stacks of 21 cm intensity maps, binned galaxy positions or shear) in cylindrical projection, but its core functionality is more general.

SOXS is a software suite which can create simulated X-ray observations of astrophysical sources with almost any existing or planned X-ray observatory. The goal of SOXS is to provide a comprehensive set of tools to design source models and convolve them with simulated models of X-ray instruments. This package was originally developed to support the Lynx X-ray Observatory mission concept, but has evolved to support other missions as well.

This package provides an way to compute dendrograms of observed or simulated Astronomical data in Python.

Skyfield computes positions for the stars, planets, and satellites in orbit around the Earth.

This simulation program lets you explore our universe in three dimensions. Celestia simulates many different types of celestial objects. From planets and moons to star clusters and galaxies, you can visit every object in the expandable database and view it from any point in space and time. The position and movement of solar system objects is calculated accurately in real time at any rate desired.

HEALPix of a sphere produces a subdivision of a spherical surface in which each pixel covers the same surface area as every other pixel. This package provides the dynamic library for the C language implementation of HEALPix.

This package provides source-only AOCommon collection of functionality that is reused in several astronomical applications, such as wsclean, aoflagger, DP3 and everybeam.

Pymcfost is a Python interface to the 3D radiative transfer code MCFOST. The goal is to provide a simple and light interface to explore and plot a single (or a few) model(s).

ctaplot provides low-level reconstruction quality-checks metrics computation and vizualisation for Imaging Atmospheric Cherenkov Telescopes such as CTA.

The GNU Astronomy Utilities (Gnuastro) is a suite of programs for the manipulation and analysis of astronomical data.

This package provides a flexible toolbox for observation planning and scheduling. When complete, the goal is to be easy for Python beginners and new observers to to pick up, but powerful enough for observatories preparing nightly and long-term schedules.

Features:

• calculate rise/set/meridian transit times, alt/az positions for targets at observatories anywhere on Earth

• built-in plotting convenience functions for standard observation planning plots (airmass, parallactic angle, sky maps)

• determining observability of sets of targets given an arbitrary set of constraints (i.e., altitude, airmass, moon separation/illumination, etc.)

This package provides a collection of astronomy related tools for Python.

The following subpackages are available:

• funcFit: A convenient fitting package providing support for minimization and MCMC sampling.

• modelSuite: A Set of astrophysical models (e.g., transit light-curve modeling), which can be used stand-alone or with funcFit.

• AstroLib: A set of useful routines including a number of ports from IDL's astrolib.

• Constants: The package provides a number of often-needed constants.

• Timing: Provides algorithms for timing analysis such as the Lomb-Scargle and the Generalized Lomb-Scargle periodogram

• pyaGUI: A collection of GUI tools for interactive work.

STIFF is a program that converts scientific FITS images to the more popular TIFF format for illustration purposes.

UNSIO provides an API for performing input and output operations on different kinds of n-body file formats (nemo, Gadget binaries 1 and 2, Gadget hdf5, Ramses).

H5plot is a small GUI to view the solutions in an H5parm interactively. It is a spiritual successor to ParmDBplot for quickly reviewing gain solutions generated by NDPPP.

This package provides a plugin for SiriL, see the installation guide on the project's Wiki.

SiriLic (SiriL's Interactif Companion) is a software for preparing acquisition files (raw, Biases, Flat and Dark) for processing with SiriL software.

Features:

• structuring the SiriL working directory into sub-folders

• convert Raw, Biases , Dark or Flat files into SiriL sequence

• automatically generate the SiriL script according to the files present and the options

• batch process multiple channel and sessions

This package provides a collection of Space Telescope Science Institute utility functions.

Astrolib PySynphot (hereafter referred to only as pysynphot) is an object-oriented replacement for STSDAS SYNPHOT synthetic photometry package in IRAF. pysynphot simulates photometric data and spectra as they are observed with the Hubble Space Telescope (HST). Passbands for standard photometric systems are available, and users can incorporate their own filters, spectra, and data.

This package provides a EventSource plugin for ctapipe, needed to read the calibrated data of the MAGIC telescope system.

This package provdies libcext - ESO's C Library Extensions. It is a C utility library,which is used to implement ESO's Common Pipeline Library (CPL). This package provides the libcext library including the on-line reference manual.

This package provides a Python library for reading from and writing to FITS files using the CFITSIO library. Among other things, it can

• read and write image, binary, and ascii table extensions;

• read arbitrary subsets of tables in a lazy manner;

• query the rows and columns of a table;

• read and write header keywords;

• read and write Gzip files.